You can add more image getters by registering named utilities for IFakeImageGetter.

After it's installed (via the Plone control panel or the portal_quickinstaller tool), you'll see a new editbar tab labeled "Populate" on all folderish content types. Clicking this tab brings up a form with parameters for specifying the kinds of objects to create, how many and the lorem ipsum rich text formatting. Objects can also be created recursively. Note that you must have collective.loremipsum: Can Populate permission to see and access the tab (assigned to Manager and Site Administrator by default).

You can also register 500 dummy users, but for the moment only by calling the browserview: @@create-dummy-users